The , also called the , is a military history of Imperial Japan's involvement in the Pacific War from 1937 to 1945. The history was compiled and is currently kept by the War History Office of Japan's Ministry of Defense in Tokyo, Japan. The publisher was Asagumo Shimbunsha. The work provides information and details on Japanese organization and operations in the Pacific campaign. Only a few of the volumes, however, have been translated into English, making it difficult for Western historians who do not read Japanese to make use of the information in western studies of the Pacific War.